Valve



P. J. McGowAN VALVE Filed June 16. 1928 Feb. '17, 1931.

I @Einar McGowan, or HYDE PARK; MASSACHUSETTS, ',AssIGNoii-'ro Ywnnmmin ooivr-` y i Patented Feb. y17, 1931 Y 'renner MnnroR-n,vMAssAcHUsnrrs, a conroim'irconfori/farneI l,

vALvE Animation filed June 1s,

My present invention relates to'valves, 'and--v p more.particularly to such valves adapted for use in the air' controlv mechanism of the sole 'cutting-vmachine illustrated and'described in May 11, igea-(Patent N 01,645,111, Oct. 11,

myprior application4 Ser. No. 108,212, iiled 1927)y and reference is hereby, made to said Apatent for acomplete disclosure ofjsaid machine, of which the present valve is'V tobe a part.A

principalr object of my present inventionv` i is to simplify and lperfect the operation of. V such valves, to eliminate all rubber,.leathe`r YY or other non-metallic parts, thereby obviating the ditiicultiescaused thereby.` Y

- A further objectof mypresent nvention is to produce a valve which will be eiiicient-in action, positive: in operation, and directly vcontrolledfby the operator.

v InY carrying out mypresentinovel inven- '.,tion,-I providea valve-which is extremely a simple and economical ofV construction, com-A prising aV valve body having a xed sleeve therein.; 'Anl eXhaustport `passes through both thev valve bodyand sleeve, and the valve .isnormallyheld in exhausted position byV vmeans of spring'controlled mechanism. An.

y Y inlet vport ypasses through the valve body and sleeve, and. a second port passes through the chine.

valve body Yand l'sleeve .leading to the Vair f alinement with the exhaust port in the sleeve yand body permitting complete ,discharge or exhaust-of all the air inthe cylinder and pipe vlines leading thereto, and assuring positive positioning of the piston and Worktable, con-v Y nected thereto, in its lowermost position. VlVhen it is desired to raise the piston and -wo`rktable, the single foot treadle of thema` chine is depressed, said foot treadle being di- I rectly lconnected to the slidingvalve, and

Y i pullssame downwardly againstthe tension of `Va spring. When-the valve is in its lowermost.' positionhin ywhich it isA positively 192s."Y serial YNo; 255,828.A I

-stopped,sports valve 'f y finlet port'in Ythe valve body andy sleeve, per-fmitting entrance of the airfpressuretoj-the interior of the slidingvalve. Simultaneously, a portV in said sliding valve is alined with the port leading to the air line connectinggthe` valve to` the cylinder, andl permitsfa',V direct.-

Y flow of air pressure to saidY cylinder, the exl il haust portsrhaving been closed or disalined i completion ofthe cutting loperation' oil-@thief` machine, the ,foot treadle is=released5wper k'mitting'the valve to ,be drawnupwar-dly by its spring controlled means, closingthe' inlet .by downward movement of thevalve.V Uponport, andopening thegexhaust ports, means being [provided to limit the' upward;A move` Ljment of the ,valveto properV Vposition;fand' Simultaneously alinement? of the fports. with thealining of the' exhaustports,la*further port inthe sliding valve Vis alinedfwith the port leading .to the` cylinder, v'whereupon the air discharges or exhausts from-the,cylinder and air line through thefexh'aust yports toY .thejopen air. f

' I have ldevised a `valve constrnct- .ed entirely of metal, with aminimumofmoving parts, posltive 1n action and. efiicientrin "operation, simple-of? constructionv and ,economical of manufacture, and as I believe that sucha valve is novel, I claimthe samebroadly herein. i

'Further construction, advantages `and. novel combinations of parts, willbe hereinafter more `fully pointed? outa'nd; claimed.

. Referring tothe drawings, illustrating a` preferred-embodiment ofmy invention,

, Fig. l is a side elevation, iin fragmentary detail, lof the sole` cutting machine offmy said prior application, with my present' valve attached-thereto; l v

Fig. 2 is a .cross-sectional-view on theline,`

2-2 of Fig. 1;

features of the invention,details of I`ig.` 3 is across-sectional viewk on theline of Fig. 2and n V ,Y f Fig. 4 1s a cross-sect1onal view illustrating' the valve inopen,l or air-admitting position. l.

"As shown in the drawings, -my present novel valve comprises a metallicl valve body l havingla platem2preferab1y.; integral therev; thereby.

in the sliding valve is'brought into alinement with the ports 28 and 7, admitting air to the interior of the sliding valve. The port 36 is simultaneously brought into alinement with the ports 37 and 13, permitting such air kiinder pressure to enter the pipe lline 14, thence the slidingvalve 26 to its normal exhausted position, alining the ports 37, 44, 46, 47 and 48 and permitting exhausting of the air to the outside of the valve, simultaneously closing or disaliiiing the inlet ports. l

ItV will thus Vbe seen that I have produced a novel valve,positive iii its operationeco noniical to manufacture, simple in operation and construction because it has a minimum of moving parts, and long-lived because of the all-metallic construction of same. I believejf that-such a valve, constructed and arrangedv as above describedis novel, andl therefore claim the samebroadly herein.-

lVhile I have necessarily described-my inventionsoinewhat in detail, Vit will be appre-Y ciated that I anipiiot limited thereto, but may vary the size, f'sliape,and arrangement lof parts within vreasonablyvvide limits without departing fromthe spirit of the invention.

My invention is further described and deing a casing, a sleeve inl said casing having an inlet port and an outlet port angularly 'disfined in the: form of claims as follows :V

1. A valve of the kind described,` comprising a casing, a sleeve in said casing, avalve slidable in said sleeve, a sleeve retaining member fixed to said casing, said member having av slot therein, and a pin on said valve slidablev in said slot to limit the movement of said slidingl valve in one direction.

2. A valve of the lrind described, comprising a casing, a sleeve in said casing, a valve slidable in said sleeve, a sleeve retaining member fixed to said casing, said member having a slot therein, a pin on said valve slidable in said slot to limit the movement of said sliding valve in one direction, an inturned flange at one end of said sleeve', said' valve having a reduced stem thereon, and a shoulder on said valve adapted to engage said inturned flange on said sleeve to limit the movement of said valve in the other direction.

3. A valve of the kind described, comprising a sleeve having an inlet port andan outlet' port angularly disposed with relation to each other, and a-hollow valve slidable in said'sleeve aiidliaving a-port adapted to be registered with said inlet port and having a Y plurality of ports adapted to be alternately registered with vsaid outlet port when said inlet-valve port is in open and closed position respectively, said sleeve also having an exhaust port remote from said inlet port,

` and vsaid valve'havi'ng a port adapted to reg- Vister with saidexhaust Y] ort after the inlet port is closed.;v i f i 4'( A valve of the kind described, comprising a sleeve having 1an inlet port andan outlet port a'ngi'i'larly disposed witlirelation tofV eachother, and. afhollow valve "slidable in said sleeve and havingfaport adapted to be registered with said-inlet port andliaving a plurality lof lalinedjfigio'rt's"adapted to -bealvternately registered-with said loutlet port when said inlet -po'rt is in open? and closed positionrespectively, said sleeve also havy ing an exhaust port remote from saidin'let port,Vv and said valve having 4Va :port-adapted i -to register with, Ysaid',exhaust port after the inlet portis closed'.`

5. Avalvejof 'the kind-described, compris-y ing a'sleeve'havi'ng an inlet port and. anoutletport angularlydisposed 'with relation' to each other, and a hollow valve slidable in said sleeve and having a port adapted to be registered with said inlet port and havingl a plurality of alined ports angularly disposedl withifrelation to said inlet port and adapted togbealternately registered with said outlet port .when said Yinlet-'port isiii'open and closed position respectively, saidfsleeve also having an exhaust port-remote fr'oinsaid inlet port, and said Vvalve having;- a port adapted to vregister with said exhaust port aftertlie inlet port isfclosedlf 6. A valve of the kind described, comprisif posed with relation-"toeach other, a-hollovv valve slidable in said sleeve andrhavinglakport adapted to be registered with said inlet port and having a plurality of ports adapted to be alternately registered with said .outlet port when said inlet valve portis Ain open and closed' position respectively, said sleeve also having an exhaust port remote from said inlet f port,vsaidvalve also. havinga port adapted to registerV with saidexliaust port after the l inlet port is closed, a sleeve retaining member;

ing a sleeve having an inletport andan outlet port angularly disposed with relation to each other, a hollow valve slidable in said sleeve and having a pair' of portsadapted to simultaneously register with said inlet and outlet ports, said sleeve Yhaving an exhaust port remote fromsaid inlet and outlet ports, and said valve havingxports adapted to beV simultaneously registered 'with saidoutlet and 'said exhaust ports after the inlet port is closed. "i

8. A valve of the kind described, comprising a casing, a sleeve in said casing having `=a1i'inlet ,pert and ari-outlet ,port angularlyf disposed with relation to eachother, a Vhol- :low valve slidable in saiclsleeve #and having -zt vpai-r of pertsndapted to simultaneously register with said inlet-ndfoutlet 1 ports, said sleevehaving,an-exhaust port remote from -said inlet andfoutletportsfsaicl valve having ports adapted to` be simultaneously regis- EJ@ered wfithsaidy outlett and ,said exhaust @ports ing fmember xed' to' said easing und vhzivng rn :slot aclgaeent gtol one end thereof, .a stem ,projecting from saiclvailve, and. a pin` extending; laterally ronrsa-icl-stem, said pin being vslidelhle in -saidfslot to limit the `movement of said valve in one direction.V v

` 9. YA valveof the kinddeseribed, comprisfintgaA easing@ sleeveinsztideasing, a valve Slidabl'e lin vS21-id sleeve, -afslfeeve retaining member fixed -to said Casing, said member having a'slot therein, -epin on lsaid vvalve l `slidahle in `seid slot yto limit the movement of -said sliding valve in one direction, an inturned flange vat -oneend of fsaidfsleeve, Said valvehaving `av reduced r`stem, thereon, and shoulder on -sziid .valve adapted toengzlg' Said -intunneclangeon said sleeve' t0 Y limit-the movement-of saiclvalvegin the other direction, said slot ,beingfof sneh length that said-pin will constantly-,engage saictslot to 'j prevent rotatieniof saidvalvewithin Vsaid In vtestimony whereof, `I have signed my :name to this rspeci-cation.

` :PETER 1J. MGGOWAN. 

